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DK7075C
(en)
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Apparatus for automatically switching on and off street lights or other gas lamps.
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DK7857C
(en)
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Apparatus for switching on and off gas lamps.
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DK11875C
(en)
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Apparatus for automatic switching on and off of lighting devices.
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DK28909C
(en)
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Apparatus for automatically switching on and off gas burners, candelabra and other lighting devices at predetermined times.
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DK7070C
(en)
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Device for devices for automatic switching on and off of any number of gas lamps and the like.
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DK8163C
(en)
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Apparatus for Switching Lighting Apparatus on and off.
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DK5121C
(en)
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Method and Apparatus for Manufacturing Gas for Lighting, Heating or Other Purposes.
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FR347904A
(en)
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Device for automatically switching on and off gas lamps
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FR4361E
(en)
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Device for automatically switching on and off gas lamps
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FR4364E
(en)
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Device for automatically switching on and off gas lamps
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DK4885C
(en)
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Apparatus for the Development and Utilization of Gas.
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DK6298C
(en)
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Ignition device for street lights or similar.
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DK10853C
(en)
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Device for Switching Gas Lights On and Off.
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DK12226C
(en)
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Apparatus for automatic On and Off Gas.
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DK6700C
(en)
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Apparatus for the Copying of Drawings and Limings by Artificial Light.
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DK8798C
(en)
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Method and device for electrochemical switching on and off of gas lamps.
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DK6724C
(en)
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Apparatus for electric Lighting.
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ES16870A1
(en)
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An improved procedure for automatically turning street lamps and other gas lamps on and off by means of the apparatus described.
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DK6846C
(en)
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Apparatus for Threading Synaale.
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FR342907A
(en)
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Special blowing device for inclined carbon arc lamps
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DK7111C
(en)
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Apparatus for Saturating Liquid with Gases.
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DK10886C
(en)
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Apparatus for automatic regulation of gas burners, lamps or the like.
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DK6625C
(en)
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Device for the manufacture of gas and air mixtures for incandescent lighting.
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DK7782C
(en)
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Apparatus for switching on and off the gas burner by changing the gas pressure.
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DK12450C
(en)
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Clockwork device for automatic switching on and off of lamps or lamps.
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